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| Registros recuperados: 31 | |
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| De Min, L.; Lebrun, J. F.; Cornee, J. J.; Munch, P.; Leticee, J. L.; Quillevere, F.; Melinte-dobrinescu, M.; Randrianasolo, A.; Marcaillou, B; Zami, F.. |
| The Karukéra spur is an easternmost submerged rise of the Lesser Antilles fore-arc in the Guadeloupe archipelago, culminating about 4000 m above the fore-arc basin 150 km west of the deformation front. The analysis of 3500 km 2D high-resolution multichannel seismic reflection and multibeam bathymetric data, and the study of 14 core samples, allow for the first time to reconstruct its sedimentary anatomy and tectonic evolution. Seven seismic units (Us1 to Us7) are evidenced, organized into four major depositional sequences separated by erosional surfaces. Units Us1 to Us4 thicken to the south-southeast on the spur. The sedimentary deposits rest upon a deeply eroded metamorphic basement of the Caribbean Plate as in La Désirade Island. Sequence 1 (units Us1... |
| Tipo: Text |
Palavras-chave: Lesser Antilles; Fore-arc; Karukéra spur; Neogene; Extensional tectonics; Basal erosion. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00252/36372/34912.pdf |
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| Vanderaveroet, P. |
| The clay fraction of sediments drilled at Ocean Drilling Program (ODP) sites 1071 and 1072 is composed of variable proportions of chlorite, illite, smectite. kaolinite, vermiculite and mixed-layers such as illite/vermiculite (I/V) and chlorite/vermiculite (C/V). Miocene and Pliocene climates allowed formation of vermiculite and kaolinite. Pleistocene clay sedimentation was characterized by abundant chlorite and illite resulting from increasing erosion of the crystalline rocks outcropping in northern areas (e.g. Canadian Shield) developed under glacial climate. The clay minerals identified on the shelf are relatively similar to those deposited on the New Jersey continental slope and rise, and a similar trend in the composition of clay assemblages is... |
| Tipo: Text |
Palavras-chave: Plate-forme; New Jersey; Minéraux argileux; Néogène; Paléoclimat; Shelf; New Jersey; Clay minerals; Neogene; Palaeoclimate. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00325/43575/44043.pdf |
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| Donovan, S.K.. |
| A distinctive chert erratic pebble found on the beach at Overstrand, north Norfolk, eastern England, is a Derbyshire screwstone. Such cherts are typical of the Mississippian (Lower Carboniferous) limestones of the southern Pennines (White Peak), over 200 km to the northwest. It was most probably transported by fluvial or glacial action during the Pleistocene and was recently disinterred by coastal erosion. The most diagnostic feature of screwstone cherts are the included mouldic crinoid ossicles, particularly columnals. Columnals of the monobathrid camerate crinoid Megistocrinus? globosus? (Phillips) are described from this screwstone; these have a circular outline, central pentagonal lumen and a raised perilumen. The uncertainty of the identification is... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Beachcombing; Provenance; Neogene; Carboniferous; Megistocrinus; 38.10. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/361971 |
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| Collins, J.S.H.; Portell, R.W.; Donovan, S.K.. |
| The Neogene decapod crustaceans are reviewed from Aruba, Bonaire and Curaçao, Anguilla, Barbados, Carriacou, Costa Rica, Cuba, Florida, Hispaniola (Haiti and Dominican Republic), Jamaica, Mexico, Panama, Puerto Rico, St. Kitts, Tintamare Island, Trinidad and Venezuela. The most widely distributed taxa, both stratigraphically and geographically, are callianassids and Calappa (both with easily identifiable dactyli), and portunids. The latter include eleven genera in the study area; of these, Callinectes, Euphylax and Portunus are known from the Miocene, Pliocene and Pleistocene of the Caribbean. The two occurrences of scleractinian-inhabiting crab faunas, the Lower Miocene Montpelier Formation of Jamaica and the Pleistocene Coral Rock of Barbados, show... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Neogene; Caribbean; Crustacea; Decapoda; Crabs; Systematics; Biogeography; 42.74. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/301552 |
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| Busulini, A.; Beschin, C.; Tessier, G.. |
| A reassessment of extinct species, fourteen in all, found in Europe and attributed to Calappilia has been carried out. For each species a short diagnosis is provided, and where necessary, its systematic position is reconsidered. Calappilia dacica lyrata is here elevated to species rank, while C. mainii is reassigned to Stenodromia A. Milne Edwards in Bouillé, 1873 and C. sexdentata is considered to be a nomen nudum. Photographs are provided of all type specimens available to us; most of these had so far been known only from (partially inaccurate) line drawings. For the first time, well-preserved chelipeds are described for the genus, having been found in articulation with a carapace of C. dacica. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Brachyura; Calappidae; Paleogene; Neogene; Reassessment; 42.74; 38.22. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/523850 |
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| Donovan, S.K.; Portell, R.W.; Veltkamp, C.J.. |
| Despite being diverse globally, Miocene echinoids are poorly known from Jamaica. Moderately diverse echinoids and other echinoderms have been identified mainly from fragmentary specimens collected from chalks and mass-flow deposits of the Lower Miocene Montpelier Formation, White Limestone Group, near Duncans, parish of Trelawny. This locality has yielded the most diverse association of fossil echinoderms known from the Miocene of Jamaica, including at least ten species in four classes. This fauna is comprised of the isocrinid crinoids Neocrinus sp. cf. N. decorus (Wyville Thomson) and Isocrinus sp.; the ophiuroid Ophiomusium? sp.; the asteroids Astropecten? spp.; and the echinoids Prionocidaris? sp., Histocidaris sp., Echinometra sp. cf. E. lucunter... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Systematics; Crinoids; Asteroids; Ophiuroids; Echinoids; Neogene; Caribbean; 42.72. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210104 |
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| Hoek Ostende, L.W. van den; Reumer, J.W.F.; Doukas, C.S.. |
| The Working-group on Insectivores from the Neogene of Eurasia (WINE) recently published an overview of the fossil record of insectivores from various European countries. The data thus gathered gives a good impression of the Neogene fossil record of this group. Although most localities are known from Spain, the Central European record has been studied in more detail. The lowermost and late Miocene are as yet relatively poorly documented, particularly in Central Europe. Throughout the Neogene the Central European record is geographically biased, most of our knowledge for a particular timeframe coming from one particular area. Overall the documentation of the fossil record appears to be adequate. Countries for which the fossil record has not been recorded in... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Mammalia; Insectivora; Neogene; Eurasia; 38.22; 42.84. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/327831 |
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| Beu, A.G.. |
| Tonnoidean gastropods in K. Martin’s and other collections in the Nationaal Natuurhistorisch Museum, Leiden (and a few other minor collections) are reidentified and classified. The resulting fauna of 99 species is very similar to that of the Indo-West Pacific today, 70% of species still inhabiting the Indonesian region. Species endemic to the Miocene and Pliocene rocks of Indonesia are Bursa sangirana sp. nov., and two new (unnamed) species similar to Bursina ignobilis (Beu); Cassis depressior Martin and C. preangerensis Martin; Cypraecassis denseplicata (Martin) and an unnamed species of Cypraecassis; Sconsia martini van Regteren Altena and S. pulchra Pannekoek; Echinophoria vandervlerki Martin (possibly a synonym of E. wyvillei (Watson)); Phalium... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Gastropoda; Tonnoidea; Neogene; Indonesia; Taxonomy; Biogeography; 42.73. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/210121 |
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| Registros recuperados: 31 | |
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